title: [Keratometry in dogs: two automatic hand-held keratometers compared].
abstract: In human medicine keratometric examinations are an essential tool for the determination of ocular refraction preceeding cataract operations. In dogs the use of manual keratometric methods is not feasible due to the lack of active cooperation. It is therefore necessary to apply autokeratometers which are also utilized in human pediatric patients. In this investigations we compared two portable automated keratometers in respect to their applicability in dogs. 40 dogs, comprising eight clinic beagles and 32 patient-dogs of various breeds were examined awake and under anesthesia using both hand-held keratometers. The horizontal and vertical corneal radius was measured consecutively by one investigator in all dogs and assessed statistically (standard deviation, analysis of regression and Student t-test). Both instruments yielded comparable results in all dogs. Furthermore, they were both tolerated well as they ensure a both rapid and minimal stress-inducing method of keratometry in dogs.
authors.affiliation: Klinik für kleine Haustiere, Tierärztlichen Hochschule Hannover.
authors.forename: C
authors.initials: C
authors.lastname: Görig
authors.forename: A
authors.initials: A
authors.lastname: Meyer-Lindenberg
authors.forename: S
authors.initials: S
authors.lastname: Ulrich
authors.forename: F
authors.initials: F
authors.lastname: Wagner
authors.forename: I
authors.initials: I
authors.lastname: Nolte
mesh_terms: D000768:Anesthesia, General / Q000662:veterinary; D000818:Animals; D001331:Automation; D002386:Cataract / Q000175:diagnosis / Q000662:veterinary*; D002387:Cataract Extraction / Q000662:veterinary; D002648:Child; D019781:Corneal Topography / Q000295:instrumentation / Q000379:methods / Q000662:veterinary*; D004283:Dog Diseases; D004285:Dogs; D006801:Humans; D012029:Refraction, Ocular; D013315:Stress, Psychological / Q000517:prevention & control; D014851:Wakefulness
vernacular_title: Keratometrie beim Hund: zwei automatische Handkeratometer im Vergleich.